1425533131 has 4 divisors (see below), whose sum is σ = 1555127064. Its totient is φ = 1295939200.

The previous prime is 1425533129. The next prime is 1425533143. The reversal of 1425533131 is 1313355241.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1425533131 - 2¹ = 1425533129 is a prime.

It is a super-2 number, since 2×1425533131² = 4064289415157326322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1425533131.

It is not an unprimeable number, because it can be changed into a prime (1425533111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64796950 + ... + 64796971.

It is an arithmetic number, because the mean of its divisors is an integer number (388781766).

Almost surely, 2^1425533131 is an apocalyptic number.

1425533131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1425533131 is a deficient number, since it is larger than the sum of its proper divisors (129593933).

1425533131 is a wasteful number, since it uses less digits than its factorization.

1425533131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129593932.

The product of its digits is 5400, while the sum is 28.

The square root of 1425533131 is about 37756.2330086040. The cubic root of 1425533131 is about 1125.4488759525.

Adding to 1425533131 its reverse (1313355241), we get a palindrome (2738888372).

The spelling of 1425533131 in words is "one billion, four hundred twenty-five million, five hundred thirty-three thousand, one hundred thirty-one".